            .box{
  				list-style: none;
				border: 1px solid #AACBEE;
				width: 320px;	
				
				margin: 0 auto;	
				background:#F5F9FC;	
				
				font-size: 25px;
			}
			li{
				border: 1px solid #AACBEE;
				border-left: white;
				border-right: white;
				margin: 2px 4px 2px 4px;
				padding: 0;
				background-image: url(img/submenu.gif);
				background-repeat: no-repeat;/*清除背景重复的元素*/
				background-position-x: right;/*横向位置靠右*/
				border-top: hidden;

			}
			
			.f{
							
				margin: 2px 4px 2px 4px;
				border:1px solid #AACBEE;
				border-top: hidden;/*隐藏边框上部标签*/
				border-left-style: none;/*左边框样式*/
				border-right-style:none ;
			}
			.g{
				margin-bottom:20px ;
				border: hidden;/*底线隐藏*/
			}